function enter(pi) {
    if (pi.getEvanIntroState("dt00=o;mo00=o;mo01=o")) {
        return false;
    }
    pi.updateEvanIntroState("dt00=o;mo00=o;mo01=o");
    pi.TutInstructionalBalloon("Effect/OnUserEff.img/guideEffect/evanTutorial/evanBalloon01");
    return true;
}
